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EVAN VOYK
Chapter 8&10 Vocabulary
| Term | Definition |
|---|---|
| solute | A substance whose particles are dissolved in a solution. |
| solvent | the substance in which a solute dissolves. |
| dissociation | the process in which an ionic compound separates into ions as it dissolves. |
| dispertion | breaking into smaller pieces and spreading throughout a substance. |
| ionization | process in which neutral molecules gain or lose electrons. |
| acid | a compound that produces htydronium atoms when dissolved in water. |
| indicator | any substance that changes color in the presence of an acid or base. |
| base | a compound that produces hydroxide ions when dissolved in water. |
| neutralization | reactions between an acid and a base. |
| salt | the negative ions in an acid and the positive ions in a base combine to form a salt. |
| pH | a measure of a solutions hydronium acid concentration. |
| buffer | a solution that is resistant to large changes in pH. |
| electrolyte | substance that ionizes or dissociates into ions when dissolved in water. |
| radioactivity | the process in which an unstable atomic nucleus emits charged particles and energy. |
| radioisotope | any atom containing an unstable nucleus. |
| nuclear radiation | charged particles and energy that is emitted from the nuclei of radioisotopes. |
| alpha particle | positively charged particle made of two protons and two neutrons. |
| beta particle | an electron emitted by an unstable nucleus. |
| gamma ray | a penetrating ray of energy emitted from an unstable nucleus. |
| background radiation | nuclear radiation that occurs naturally in the environment. |
| strong nuclear force | the attractive force that binds protons and neutrons together in the nucleus |
| fission | the splitting of an atomic nucleus into two smaller parts. |
| chain reaction | neutrons released during the splitting of an initial nucleus. |
| critical mass | the smallest possible mass of a fissionable material that can sustain a chain reactin |
| fusion | the process in which the nuclei of two atoms combine to form a larger nucleus. |
| plasma | a state of matter in which atoms have been stripped of their electrons. |